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The outbreak of the Nipah Virus (NiV) in West Bengal, India, with a mortality rate of up to 75%, has forced countries in the region to activate emergency screening systems. International travelers should pay particular attention to the new quarantine regulations to avoid disruptions to their travel plans.
Ahead of the peak travel season in early 2026, air gateways in Thailand, Nepal, and Taiwan have all raised their alert levels. Measures such as temperature checks, health declarations, and epidemiological surveillance—common during the Covid-19 era—are being reimplemented to prevent the spread of a virus that is far more virulent.
Tighten screening procedures at international transport hubs.
Thailand has reacted most aggressively. Since January 25th, the Thai Ministry of Public Health has established special health checkpoints at key airports: Suvarnabhumi, Don Mueang, and Phuket. According to the Daily Mirror, all passengers arriving from high-risk areas are required to undergo temperature checks using infrared devices and answer strict epidemiological questionnaires.
Medical staff are carrying out temperature checks and symptom screening for passengers entering from areas with high epidemiological risk.
Similarly, in Nepal, Tribhuvan International Airport (Kathmandu) has deployed additional medical staff on duty 24/7. Beyond air travel, Nepalese authorities have also intensified surveillance at land border crossings with India. The core objective is to identify and isolate cases with symptoms such as fever or neurological disorders early at the border.
The sight of health barriers and health declaration areas being reactivated reminded many tourists of the strict preventative measures during the Covid-19 pandemic.
Meanwhile, Taiwan (China) has officially issued a "yellow" travel advisory for the West Bengal region. According to Focus Taiwan, although no flight bans or widespread lockdowns have been implemented, hospital systems and border quarantine forces have been placed on high alert, activating protocols to respond to emerging infectious diseases.
Nipah Virus: A Silent Killer with an Extremely High Mortality Rate
Data from the World Health Organization (WHO) indicates that the Nipah virus is one of the most dangerous pathogens currently known. Unlike the SARS-CoV-2 virus, Nipah is transmitted from animals (especially fruit bats) to humans, with severe complications affecting the brain and respiratory system.
Many major airports around the world have issued warnings about preventing the spread of the Nipah virus, urging travelers to proactively monitor their health for 21 days.
Dr. Narendra Kumar Arora, of the National Technical Advisory Council (NTAGI) of India, told ANI news agency: "Nipah is not a new threat, but its progression is extremely complex. Patients often develop encephalitis or acute respiratory failure very quickly." More concerning, there is currently no vaccine or specific treatment available. Treatment relies primarily on monoclonal antibodies, but the supply of these drugs is extremely scarce globally.
Unlike Covid-19, which required widespread control, Nipah virus screening focuses on identifying individuals with symptoms and epidemiological risk factors, aiming to prevent the spread of the virus.
Although airport screening methods have many similarities, travelers need to understand the differences in transmission characteristics to cooperate with medical staff. Regarding transmission mechanisms, Covid-19 spreads strongly through the air, while the Nipah virus is primarily transmitted through direct contact with contaminated bodily fluids or food. Concerning screening targets, current airport measures focus on individuals with clear clinical symptoms (fever, headache, cough, confusion) and epidemiological risk factors (coming from affected areas). In addition, rapid Nipah tests, similar to Covid-19, are now available on-site. Confirmation of cases must be done through RT-PCR testing at specialized laboratories.
In Nipah, rapid on-site testing is largely unavailable, and diagnosis requires specialized laboratory work. Isolation and control measures are also more selective.
To ensure safety and avoid legal and health issues when traveling internationally, travelers should strictly adhere to the following recommendations. Absolutely do not consume raw food, avoid eating fruit showing signs of animal bites, or drinking fresh beverages that have not been heat-treated in areas with outbreaks. Stay away from fruit bat habitats or pig farms in West Bengal and Bangladesh. Travelers should also remember to wash their hands frequently with soap or an alcohol-based hand sanitizer with a concentration of over 60%.
It is especially important to proactively declare your health status. If you have a travel history through an epidemic area within the past 21 days, you must truthfully inform airport quarantine personnel even if you do not have symptoms. If you experience a high fever or severe headache within 3 weeks of returning, you should immediately go to a medical facility and clearly report your travel history.
Currently, health checks at airports are not intended to hinder travel but are a necessary precautionary measure to protect global public health. Travelers should remain calm and stay updated with information from official sources such as the WHO, CDC, and official announcements from aviation authorities.
